90 channels Fireworks firing system

Fireworks Firing System carries three junction boxes and 90 channels. Every junction boxhas 3 districts(A B C, D E F, G H I .). Each channel can support the firing /discharging of 50 electrical matches at on go. The model comes with 80 meter lead cables, plus additional of 10 meter which the customer can order separately.. Name: 90 channels Fireworks Firing System Model Number: JW4073 Main Box Size: 25*20*12cm(Yellow) Unit Junction Box Size: 54*8*7cm Weight:30KG COMPANY:RED SUN INTERNATIONAL TRADING CO.LIMITED Features of Firing System: 1. Connecting 220/110 AC. or car battery. The output voltage :110v 2.Test mode for each channel. 3.Special for the waterfall,90 position ,Hand Control 4.Each channel can fire about 50pcs products. 5.The output voltage :110v Attetions: 1,Please dont make it to be short circuit for that would damage machine. 2.If connecting products in series, please use the products which made by the same factory; Because the resistivity of ignition are different of each factory , 4. Please turn off the power switch when the circuit connecting but dont need to use it , and pls do not shake the machine violently; 5. Dont press FIRE after pull out electrical outlet, for there is left power would ignite products; 6.Please dont place the product in the damp , sour ,alkali and pollution environment